These are the conventions I'm planning to attend in 2015, and the costume line up I have planned so far to go along with them.
Line ups will be updated closer to the convention date with changes.
Katsucon - Sonia from Shining Resonance
Toronto ComicCon - Umi from Love Live
Chiyo Sakura from Monthly Girl's Nozaki-kun
Anime North - Bard from Aion Online
Shiro from No Game No Life
Colossal Con - Team RWBY swimsuits
Ayeka from Tenchi Muyo Ai
Chibi Moon for Sailor Moon Princess group
Shampoo from Ranma 1/2
Anime Expo - Sonia from Shining Resonance
Conventions I haven't listed I have no plans to attend this year.